“This inflatable should not have been installed with expected conditions”

Safety expert Neil Gossage

But safety expert Neil Gossage has said the bouncy castle in question should not have been used when wind or gusts are more than Force 5 on the Beaufort scale.

"This is a terrible thing to have happened," he told the Mirror.

Mr Gossage hires out bouncy castles as well as being a registered safety inspector and said he had cancelled his outdoor bookings on seeing the forecast.

He said: "This inflatable should not have been installed with expected conditions.

"It shouldn't have been up at all."

SWNS

TRAGIC: The bouncy castle flew over several trailers before crashing to the ground

Summer was quickly taken to Princess Alexandra Hospital in a critical condition but the East of England Air Ambulance Service said she later died "despite the best efforts of everyone involved".

A 24-year-old woman and a 27-year-old man have been arrested on suspicion of manslaughter by gross negligence after the horrific incident, thought to have been exacerbated by high winds, in Harlow, Essex.

They are understood to be from the family-run bouncy castle firm.

Mum Cara Blackie, 26, from Norwich, and dad Lee Grant, originally from Harlow, Essex, were said to be too upset to talk.

Flowers and an Easter basket were left at the park’s entrance, while another card on a bunch of flowers read: "God has taken a beautiful girl for his angel. RIP Princess."

SWNS

SAD: Tributes to the girl who was described as an Angel were left at the fun fair

Essex Police has said it is now working with the Health and Safety Executive as part of their investigation, and enquiries are ongoing.

Detective Inspector Daniel Stoten said: "The weather will certainly make up part of this investigation - whether the weather was a factor and whether or not it was appropriate for the ride to be running.

YOUTUBE

SPRINT: Police officers were spotted running to the scene

"It will be a complex and thorough investigation - I do not anticipate this to be a quick inquiry, it will be a lengthy investigation.

"We will be speaking to scientists in relation to the weight of the ride, the type of weather, the ground underfoot, the moisture content and how the ride was tethered."

In May last year a bouncy castle at a children's fair in the same park deflated with children inside, with parents jumping on to help their terrified children.